Lattice vibration energy

Mossbauer s discovery [49] consisted in the fact that when the nuclei of the emitter and the absorber are included in a solid matrix, they vibrate in a crystal lattice [49,54,56], Therefore, owing to the essential quantum character of solid vibrations (see Section 1.4), the atoms located in a solid matrix are limited to a certain collection of quantized lattice vibration energies [54], Consequently, if the recoil energy is smaller than the lowest quantized lattice vibration energy, Ew, then / v = 0D, in which, k is the Boltzmann constant and 0D is the Debye temperature of the solid. In this case, this... 

For the computational evaluation of these Gibbs free energy differences, in principle it is necessary to calculate all three terms on the right hand side of eq (5.1). The third term is often neglected, since differences in lattice-vibrational energies are usually... 

For a solid with a full energy band and an empty band close above it in energy, what do you expect to happen as the crystal lattice vibration energy is transferred to the electrons ... 

The lattice vibration causes elastic waves in crystals. The quantum of die lattice vibrational energy is called phonon, in analogy with the photon of the electromagnetic wave. 

The principal macroscopic effect of exciton dissociation is photoconductivity. There are several pathways by which an exciton may become dissociated to yield a conducting state. One is by interaction with a quantum of lattice vibrational energy. The vibrational energy of the lattice and the kinetic energy of the exciton supply the dissociation energy. Another pathway may... 

Phonon a quantum of lattice vibrational energy which reflects the normal vibrational modes of the lattice allowed by symmetry. 

E tr = translational energy transferred through linear momentum to the crystallite as a whole and is very small hence neglected E vib = lattice vibrational energy... 

Lattice vibrational energy transport, also known as phonon conduction, occurs in all solids—dielectrics and metals. In nonmetallic crystals and some intermetallic compounds, the principal mechanism of heat conduction is by... 

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